来自致密天体并合的持续数分钟的软X射线瞬时辐射
高能天体物理现象
2026-01-21 v1
摘要
致密天体并合是多信使源，也是一些伽马射线暴（GRB）的前身天体，主要通过伽马射线观测来理解，而在瞬时低能阶段受到的约束很少。在几次短持续时间（≲2秒）暴之后，曾讨论过一种持久的X射线辐射作为余辉，然而这种瞬时X射线成分并未被直接观测或证实。在此，我们报告了在短时（约0.4秒）伽马射线暴GRB 250704B之后，立即发现了一个持续数分钟（约560秒）的软X射线闪光。这个长而软的凸起指向了由爱因斯坦探针（Einstein Probe）探测到的X射线瞬时辐射的一个独特阶段，而该事件在其他方面表现为一个普通的短伽马射线暴，这表明持久的X射线辐射很可能是并合驱动的暴的普遍特征，并且是引力波源的一个有希望的电磁对应体。
引用
@article{arxiv.2601.14137,
title = {Minutes-long soft X-ray prompt emission from a compact object merger},
author = {An Li and Chen-Wei Wang and Niccolò Passaleva and Jie An and Bin-Bin Zhang and Eleonora Troja and Yi-Han Iris Yin and Yuan Liu and Shao-Lin Xiong and Li-Ping Xin and Yi-Xuan Shao and Jun Yang and Hui Sun and Dong Xu and Yu-Han Yang and Roberto Ricci and He Gao and Sarah Antier and Rosa L. Becerra and Jia-Xin Cao and Alberto Javier Castro-Tirado and Xin-Lei Chen and Ye-Hao Cheng and Yong Chen and Hua-Qing Cheng and Valerio D'Elia and Massimiliano De Pasquale and Yong-Wei Dong and Eslam Elhosseiny and Rob A. J. Eyles-Ferris and Maria Gritsevich and Xu-Hui Han and Dieter Hartmann and You-Dong Hu and Jing-Wei Hu and Shu-Mei Jia and Nino Kochiashvili and Wei-Hua Lei and Andrew J. Levan and Cheng-Kui Li and Dong-Yue Li and Hua-Li Li and Xiao-Bo Li and Zhi-Xing Ling and He-Yang Liu and Hou-Jun Lv and Daniele B. Malesani and Brendan O'Connor and Hai-Wu Pan and Shashi Bhushan Pandey and Ignacio Perez-Garcia and Daniëlle L. A. Pieterse and Marion Pillas and Yu-Lei Qiu and Andrea Saccardi and Rubén Sánchez-Ramírez and Wen-Jun Tan and Manasanun Tanasan and Nial R. Tanvir and Susanna D. Vergani and Jing Wang and Xiao-Feng Wang and Qin-Yu Wu and Shu-Xu Yi and Tillayev Yusufjon and Chen Zhang and Wen-Da Zhang and Yi-Jia Zhang and Guo-Ying Zhao and Chao Zheng and Shi-Jie Zheng and Chang Zhou and Ping Zhou and Bertrand Cordier and Jian-Yan Wei and Weimin Yuan and Shuang-Nan Zhang and Bing Zhang},
journal= {arXiv preprint arXiv:2601.14137},
year = {2026}
}
备注
52 pages, 10 figures, 5 tables